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Question

The major products obtained in the reaction of oxalic acid with conc. H2SO4 upon heating are:

A
CO, CO2, H2O
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B
CO, SO2, H2O
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C
H2S, CO, H2O
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D
HCOOH, H2S, CO
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Solution

The correct option is A CO, CO2, H2O
On heating, oxalic acid gets dehydrated and decomposed.
(COOH)2.H2O+H2SO4ΔCO2+CO+[H2SO4.3H2O]

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